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Borchert's Transportation Model 18. What does it describe? 19. What is on epoch and how is it used? 20. Borchert's Model of Urban Growth - complete the chort Epoch Time period Conditions and Effects Rail-Wagon ports became very important Poor conditions made long-distance travel between cities hard Iron Horse engines powered boots, which promoted the growth of cities. Regional networks connected lines connected and sites. Transcontinental emerged Cities emerged along lines in the of the continent. Auto-Air- allowed cities to spread out Amenity Airport emerged Cities became High 1970- Defining tech: internet Technology present